If you are looking for a cup that doesn't take up too much space, then the Collapsible Mug is designed for you. It's collapsible, portable, suitable for outdoor activities and daily use. When collapsed, the mug is only 47.3mm but when in use, it can hold up to 280ml of water standing at 109mm tall. The Mug comes with a lid that doubles up as a coaster to save yourself from any mess and leaving behind any unwanted stains. This product is Microwave and Dishwasher safe as well as 100% BPA free. Material : Silicone.